(134340) Pluto
ephemeris date magn radius delta ra dec elong phase
Today7 Dec 202515.235.404 AU36.068 AU20h19m-23°26'47.0°1.2°
Opposition26 Jul 202614.935.564 AU34.551 AU20h29m-23°25'175.7°0.1°
(134340) Pluto - 2025-12-07
astro.vanbuitenen.nl


 
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The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of Pluto are:

            e (Eccentricity)                : 0.2470716
            a (Semimajor axis)              : 39.3398536
            i (Inclination)                 : 17.17579
            Ω (Longitude of ascending node) : 110.33624
            ω (Argument of perihelion)      : 113.17584
            M (Mean anomaly)                : 53.10668
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 44.47266
            B (Latitude of perihelion)      : 15.75198
            P (Orbital period in years)     : 246.75            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.


The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.





The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.




Ephemerides:
Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-12-07 00:00 UT   20 19 20.1   -23 26 58    36.068   35.404   47.0    1.2    80   15.2 
2025-12-07 04:39 UT   20 19 21.3   -23 26 54    36.071   35.404   46.8    1.2    80   15.2 
2025-12-08 00:00 UT   20 19 26.2   -23 26 39    36.081   35.405   46.0    1.1    80   15.1 
2025-12-09 00:00 UT   20 19 32.3   -23 26 19    36.094   35.406   45.1    1.1    81   15.1 
2025-12-10 00:00 UT   20 19 38.5   -23 25 60    36.107   35.406   44.1    1.1    81   15.1 
2025-12-11 00:00 UT   20 19 44.8   -23 25 40    36.120   35.407   43.1    1.1    81   15.1 
2025-12-12 00:00 UT   20 19 51.2   -23 25 19    36.132   35.408   42.1    1.1    81   15.1 
2025-12-13 00:00 UT   20 19 57.7   -23 24 59    36.144   35.408   41.1    1.0    81   15.1 
2025-12-14 00:00 UT   20 20 04.2   -23 24 39    36.156   35.409   40.1    1.0    81   15.1 
2025-12-15 00:00 UT   20 20 10.9   -23 24 18    36.168   35.410   39.1    1.0    81   15.1 
2025-12-16 00:00 UT   20 20 17.6   -23 23 57    36.179   35.410   38.2    1.0    82   15.1 
2025-12-17 00:00 UT   20 20 24.3   -23 23 36    36.190   35.411   37.2    1.0    82   15.1 
2025-12-18 00:00 UT   20 20 31.2   -23 23 15    36.201   35.412   36.2    0.9    82   15.1 
2025-12-19 00:00 UT   20 20 38.1   -23 22 54    36.212   35.412   35.2    0.9    82   15.1 
2025-12-20 00:00 UT   20 20 45.1   -23 22 32    36.222   35.413   34.2    0.9    82   15.1 
2025-12-21 00:00 UT   20 20 52.1   -23 22 11    36.233   35.414   33.2    0.9    82   15.1 
2025-12-22 00:00 UT   20 20 59.2   -23 21 49    36.243   35.415   32.2    0.8    83   15.1 
2025-12-23 00:00 UT   20 21 06.4   -23 21 27    36.252   35.415   31.3    0.8    83   15.1 
2025-12-24 00:00 UT   20 21 13.6   -23 21 05    36.262   35.416   30.3    0.8    83   15.1 
2025-12-25 00:00 UT   20 21 20.9   -23 20 43    36.271   35.417   29.3    0.8    83   15.1 
2025-12-26 00:00 UT   20 21 28.3   -23 20 21    36.280   35.417   28.3    0.8    84   15.1 
2025-12-27 00:00 UT   20 21 35.7   -23 19 59    36.289   35.418   27.3    0.7    84   15.1 
2025-12-28 00:00 UT   20 21 43.1   -23 19 36    36.297   35.419   26.4    0.7    84   15.1 
2025-12-29 00:00 UT   20 21 50.6   -23 19 14    36.305   35.419   25.4    0.7    85   15.1 
2025-12-30 00:00 UT   20 21 58.2   -23 18 51    36.313   35.420   24.4    0.7    85   15.1 
2025-12-31 00:00 UT   20 22 05.8   -23 18 29    36.321   35.421   23.4    0.6    85   15.1 
2026-01-01 00:00 UT   20 22 13.4   -23 18 06    36.328   35.421   22.5    0.6    86   15.1 
2026-01-02 00:00 UT   20 22 21.1   -23 17 43    36.335   35.422   21.5    0.6    86   15.1 
2026-01-03 00:00 UT   20 22 28.9   -23 17 20    36.342   35.423   20.5    0.6    87   15.1 
2026-01-04 00:00 UT   20 22 36.6   -23 16 57    36.348   35.423   19.5    0.5    87   15.1 
2026-01-05 00:00 UT   20 22 44.4   -23 16 35    36.355   35.424   18.6    0.5    88   15.1 
2026-01-06 00:00 UT   20 22 52.3   -23 16 12    36.361   35.425   17.6    0.5    89   15.1 


    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.